@white: #fff;
@black: #000;
@gray-darker:  lighten(@black, 13.5%); // #222
@gray-dark:    lighten(@black, 20%);   // #333
@gray:         lighten(@black, 33.5%); // #555
@gray-light:   lighten(@black, 46.7%); // #777
@gray-lighter: lighten(@black, 87%);   // #ddd
@link-background-color: #5bc0de;
@widget-icon-color: #31b0d5;